Skip to content

L
linux
Commit 788c551c authored by James Bottomley's avatar James Bottomley
Browse files
Options

Merge mulgrave.(none):/home/jejb/BK/scsi-drivers-2.5 

into mulgrave.(none):/home/jejb/BK/scsi-for-linus-2.5
parents a0f3a291 000aec7b
Hide whitespace changes
Inline Side-by-side
Showing with 235 additions and 267 deletions
drivers/scsi/megaraid.c
View file @ 788c551c
......@@ -2865,16 +2865,14 @@ static int mega_findCard (Scsi_Host_Template * pHostTmpl,
pciDevFun = pdev->devfn;
#endif
if ((flag & BOARD_QUARTZ) && (skip_id == -1)) {
pcibios_read_config_word (pciBus, pciDevFun,
PCI_CONF_AMISIG, &magic);
pci_read_config_word (pdev, PCI_CONF_AMISIG, &magic);
if ((magic != AMI_SIGNATURE)
&& (magic != AMI_SIGNATURE_471)) {
pciIdx++;
continue; /* not an AMI board */
}
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
pcibios_read_config_dword (pciBus, pciDevFun,
PCI_CONF_AMISIG64, &magic64);
pci_read_config_dword (pdev, PCI_CONF_AMISIG64, &magic64);
if (magic64 == AMI_64BIT_SIGNATURE)
flag |= BOARD_64BIT;
......@@ -3215,7 +3213,6 @@ int megaraid_detect (Scsi_Host_Template * pHostTmpl)
count += mega_findCard (pHostTmpl, PCI_VENDOR_ID_AMI,
PCI_DEVICE_ID_AMI_MEGARAID3, BOARD_QUARTZ);
mega_reorder_hosts ();
#ifdef CONFIG_PROC_FS
if (count) {
......@@ -3481,173 +3478,6 @@ mega_get_boot_ldrv(mega_host_config *megacfg)
}
static void mega_reorder_hosts (void)
{
struct Scsi_Host *shpnt;
struct Scsi_Host *shone;
struct Scsi_Host *shtwo;
mega_host_config *boot_host;
int i;
/*
* Find the (first) host which has it's BIOS enabled
*/
boot_host = NULL;
for (i = 0; i < MAX_CONTROLLERS; i++) {
if (mega_hbas[i].is_bios_enabled) {
boot_host = mega_hbas[i].hostdata_addr;
break;
}
}
if (boot_host == NULL) {
printk (KERN_WARNING "megaraid: no BIOS enabled.\n");
return;
}
/*
* Traverse through the list of SCSI hosts for our HBA locations
*/
shone = shtwo = NULL;
for (shpnt = scsi_hostlist; shpnt; shpnt = shpnt->next) {
/* Is it one of ours? */
for (i = 0; i < MAX_CONTROLLERS; i++) {
if ((mega_host_config *) shpnt->hostdata ==
mega_hbas[i].hostdata_addr) {
/* Does this one has BIOS enabled */
if (mega_hbas[i].hostdata_addr == boot_host) {
/* Are we first */
if (shtwo == NULL) /* Yes! */
return;
else { /* :-( */
shone = shpnt;
}
} else {
if (!shtwo) {
/* were we here before? xchng first */
shtwo = shpnt;
}
}
break;
}
}
/*
* Have we got the boot host and one which does not have the bios
* enabled.
*/
if (shone && shtwo)
break;
}
if (shone && shtwo) {
mega_swap_hosts (shone, shtwo);
}
return;
}
static void mega_swap_hosts (struct Scsi_Host *shone, struct Scsi_Host *shtwo)
{
struct Scsi_Host *prevtoshtwo;
struct Scsi_Host *prevtoshone;
struct Scsi_Host *save = NULL;;
/* Are these two nodes adjacent */
if (shtwo->next == shone) {
if (shtwo == scsi_hostlist && shone->next == NULL) {
/* just two nodes */
scsi_hostlist = shone;
shone->next = shtwo;
shtwo->next = NULL;
} else if (shtwo == scsi_hostlist) {
/* first two nodes of the list */
scsi_hostlist = shone;
shtwo->next = shone->next;
scsi_hostlist->next = shtwo;
} else if (shone->next == NULL) {
/* last two nodes of the list */
prevtoshtwo = scsi_hostlist;
while (prevtoshtwo->next != shtwo)
prevtoshtwo = prevtoshtwo->next;
prevtoshtwo->next = shone;
shone->next = shtwo;
shtwo->next = NULL;
} else {
prevtoshtwo = scsi_hostlist;
while (prevtoshtwo->next != shtwo)
prevtoshtwo = prevtoshtwo->next;
prevtoshtwo->next = shone;
shtwo->next = shone->next;
shone->next = shtwo;
}
} else if (shtwo == scsi_hostlist && shone->next == NULL) {
/* shtwo at head, shone at tail, not adjacent */
prevtoshone = scsi_hostlist;
while (prevtoshone->next != shone)
prevtoshone = prevtoshone->next;
scsi_hostlist = shone;
shone->next = shtwo->next;
prevtoshone->next = shtwo;
shtwo->next = NULL;
} else if (shtwo == scsi_hostlist && shone->next != NULL) {
/* shtwo at head, shone is not at tail */
prevtoshone = scsi_hostlist;
while (prevtoshone->next != shone)
prevtoshone = prevtoshone->next;
scsi_hostlist = shone;
prevtoshone->next = shtwo;
save = shtwo->next;
shtwo->next = shone->next;
shone->next = save;
} else if (shone->next == NULL) {
/* shtwo not at head, shone at tail */
prevtoshtwo = scsi_hostlist;
prevtoshone = scsi_hostlist;
while (prevtoshtwo->next != shtwo)
prevtoshtwo = prevtoshtwo->next;
while (prevtoshone->next != shone)
prevtoshone = prevtoshone->next;
prevtoshtwo->next = shone;
shone->next = shtwo->next;
prevtoshone->next = shtwo;
shtwo->next = NULL;
} else {
prevtoshtwo = scsi_hostlist;
prevtoshone = scsi_hostlist;
save = NULL;;
while (prevtoshtwo->next != shtwo)
prevtoshtwo = prevtoshtwo->next;
while (prevtoshone->next != shone)
prevtoshone = prevtoshone->next;
prevtoshtwo->next = shone;
save = shone->next;
shone->next = shtwo->next;
prevtoshone->next = shtwo;
shtwo->next = save;
}
return;
}
static inline void mega_freeSgList (mega_host_config * megaCfg)
{
int i;
......@@ -4293,7 +4123,6 @@ mega_partsize(struct block_device *bdev, sector_t capacity, int *geom)
struct partition *p, *largest = NULL;
int i, largest_cyl;
int heads, cyls, sectors;
int capacity = capacity;
unsigned char *buf;
if (!(buf = scsi_bios_ptable(bdev)))
......@@ -4683,12 +4512,7 @@ static int megadev_ioctl (struct inode *inode, struct file *filep,
/*
* Find this host
*/
for( shpnt = scsi_hostlist; shpnt; shpnt = shpnt->next ) {
if( shpnt->hostdata == (unsigned long *)megaCtlrs[adapno] ) {
megacfg = (mega_host_config *)shpnt->hostdata;
break;
}
}
shpnt = megaCtlrs[adapno]->host;
if(shpnt == NULL) return -ENODEV;
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0)
......@@ -4803,12 +4627,7 @@ static int megadev_ioctl (struct inode *inode, struct file *filep,
/*
* Find this host
*/
for( shpnt = scsi_hostlist; shpnt; shpnt = shpnt->next ) {
if( shpnt->hostdata == (unsigned long *)megaCtlrs[adapno] ) {
megacfg = (mega_host_config *)shpnt->hostdata;
break;
}
}
shpnt = megaCtlrs[adapno]->host;
if(shpnt == NULL) return -ENODEV;
/*
......
drivers/scsi/megaraid.h
View file @ 788c551c
......@@ -214,8 +214,6 @@
info: megaraid_info, /* Driver Info Function */\
command: megaraid_command, /* Command Function */\
queuecommand: megaraid_queue, /* Queue Command Function */\
abort: megaraid_abort, /* Abort Command Function */\
reset: megaraid_reset, /* Reset Command Function */\
bios_param: megaraid_biosparam, /* Disk BIOS Parameters */\
can_queue: MAX_COMMANDS, /* Can Queue */\
this_id: 7, /* HBA Target ID */\
......@@ -989,8 +987,6 @@ static void enq_scb_freelist (mega_host_config *, mega_scb *,
int lock, int intr);
static int mega_is_bios_enabled (mega_host_config *);
static void mega_reorder_hosts (void);
static void mega_swap_hosts (struct Scsi_Host *, struct Scsi_Host *);
static void mega_create_proc_entry (int index, struct proc_dir_entry *);
static int mega_support_ext_cdb(mega_host_config *);
......
drivers/scsi/scsi_debug.c
View file @ 788c551c
......@@ -17,6 +17,7 @@
* forked for lk 2.5 series [20011216, 20020101]
* use vmalloc() more inquiry+mode_sense [20020302]
* add timers for delayed responses [20020721]
* Patrick Mansfield <patmans@us.ibm.com> max_luns+scsi_level [20021031]
*/
#include <linux/config.h>
......@@ -49,7 +50,7 @@
#include "scsi_debug.h"
static const char * scsi_debug_version_str = "Version: 1.62 (20020812)";
static const char * scsi_debug_version_str = "Version: 1.63 (20021103)";
#define DRIVERFS_SUPPORT 1 /* comment out whole line to disable */
......@@ -60,9 +61,8 @@ static const char * scsi_debug_version_str = "Version: 1.62 (20020812)";
#ifndef SCSI_CMD_WRITE_16
#define SCSI_CMD_WRITE_16 0x8a
#endif
#ifndef REPORT_LUNS
#define REPORT_LUNS 0xa0
#endif
#define SDEBUG_TAGGED_QUEUING 0 /* 0 | MSG_SIMPLE_TAG | MSG_ORDERED_TAG */
/* A few options that we want selected */
#define DEF_NR_FAKE_DEVS 1
......@@ -70,6 +70,8 @@ static const char * scsi_debug_version_str = "Version: 1.62 (20020812)";
#define DEF_FAKE_BLK0 0
#define DEF_EVERY_NTH 100
#define DEF_DELAY 1
#define DEF_MAX_LUNS 2
#define DEF_SCSI_LEVEL 3
#define DEF_OPTS 0
#define SCSI_DEBUG_OPT_NOISE 1
......@@ -83,8 +85,11 @@ static int scsi_debug_opts = DEF_OPTS;
static int scsi_debug_every_nth = DEF_EVERY_NTH;
static int scsi_debug_cmnd_count = 0;
static int scsi_debug_delay = DEF_DELAY;
static int scsi_debug_max_luns = DEF_MAX_LUNS;
static int scsi_debug_scsi_level = DEF_SCSI_LEVEL;
#define NR_HOSTS_PRESENT (((scsi_debug_num_devs - 1) / 7) + 1)
/* This assumes one lun used per allocated target id */
#define N_HEAD 8
#define N_SECTOR 32
#define DEV_READONLY(TGT) (0)
......@@ -118,7 +123,7 @@ struct sdebug_dev_info {
};
static struct sdebug_dev_info * devInfop;
typedef void (* done_funct_t) (Scsi_Cmnd *);
typedef void (* done_funct_t) (struct scsi_cmnd *);
struct sdebug_queued_cmd {
int in_use;
......@@ -131,7 +136,7 @@ static struct sdebug_queued_cmd queued_arr[SCSI_DEBUG_CANQUEUE];
static unsigned char * fake_storep; /* ramdisk storage */
static unsigned char broken_buff[SDEBUG_SENSE_LEN];
static unsigned char spare_buff[SDEBUG_SENSE_LEN];
static int num_aborts = 0;
static int num_dev_resets = 0;
......@@ -151,17 +156,18 @@ static int resp_inquiry(unsigned char * cmd, int target, unsigned char * buff,
static int resp_mode_sense(unsigned char * cmd, int target,
unsigned char * buff, int bufflen,
struct sdebug_dev_info * devip);
static int resp_read(Scsi_Cmnd * SCpnt, int upper_blk, int block,
static int resp_read(struct scsi_cmnd * SCpnt, int upper_blk, int block,
int num, struct sdebug_dev_info * devip);
static int resp_write(Scsi_Cmnd * SCpnt, int upper_blk, int block, int num,
struct sdebug_dev_info * devip);
static int resp_write(struct scsi_cmnd * SCpnt, int upper_blk, int block,
int num, struct sdebug_dev_info * devip);
static int resp_report_luns(unsigned char * cmd, unsigned char * buff,
int bufflen, struct sdebug_dev_info * devip);
static void timer_intr_handler(unsigned long);
static struct sdebug_dev_info * devInfoReg(Scsi_Cmnd *scmd);
static struct sdebug_dev_info * devInfoReg(struct scsi_cmnd *scmd);
static void mk_sense_buffer(struct sdebug_dev_info * devip, int key,
int asc, int asq, int inbandLen);
static int check_reset(Scsi_Cmnd * SCpnt, struct sdebug_dev_info * devip);
static int check_reset(struct scsi_cmnd * SCpnt,
struct sdebug_dev_info * devip);
static int schedule_resp(struct scsi_cmnd * cmnd,
struct sdebug_dev_info * devip,
done_funct_t done, int scsi_result, int delta_jiff);
......@@ -188,7 +194,7 @@ static unsigned char * scatg2virt(const struct scatterlist * sclp)
}
static
int scsi_debug_queuecommand(Scsi_Cmnd * SCpnt, done_funct_t done)
int scsi_debug_queuecommand(struct scsi_cmnd * SCpnt, done_funct_t done)
{
unsigned char *cmd = (unsigned char *) SCpnt->cmnd;
int block;
......@@ -215,8 +221,7 @@ int scsi_debug_queuecommand(Scsi_Cmnd * SCpnt, done_funct_t done)
else
buff = (unsigned char *) SCpnt->request_buffer;
if (NULL == buff) {
printk(KERN_WARNING "scsi_debug:qc: buff was NULL??\n");
buff = broken_buff; /* just point at dummy */
buff = spare_buff; /* assume cmd moves no data */
bufflen = SDEBUG_SENSE_LEN;
}
......@@ -226,11 +231,11 @@ int scsi_debug_queuecommand(Scsi_Cmnd * SCpnt, done_funct_t done)
return schedule_resp(SCpnt, NULL, done, 0, 0);
}
if (SCpnt->lun != 0)
if (SCpnt->lun >= scsi_debug_max_luns)
return schedule_resp(SCpnt, NULL, done,
DID_NO_CONNECT << 16, 0);
#if 0
printk(KERN_INFO "sdebug:qc: host_no=%d, id=%d, sdp=%p, cmd=0x%x\n",
printk(KERN_INFO "sdebug:qc: host_no=%u, id=%u, sdp=%p, cmd=0x%x\n",
(int)SCpnt->device->host->host_no, (int)SCpnt->device->id,
SCpnt->device, (int)*cmd);
#endif
......@@ -248,9 +253,6 @@ int scsi_debug_queuecommand(Scsi_Cmnd * SCpnt, done_funct_t done)
switch (*cmd) {
case INQUIRY: /* mandatory */
/* assume INQUIRY called first so setup max_cmd_len */
if (SCpnt->host->max_cmd_len != SCSI_DEBUG_MAX_CMD_LEN)
SCpnt->host->max_cmd_len = SCSI_DEBUG_MAX_CMD_LEN;
errsts = resp_inquiry(cmd, target, buff, bufflen, devip);
break;
case REQUEST_SENSE: /* mandatory */
......@@ -380,6 +382,9 @@ int scsi_debug_queuecommand(Scsi_Cmnd * SCpnt, done_funct_t done)
case MODE_SENSE_10:
errsts = resp_mode_sense(cmd, target, buff, bufflen, devip);
break;
case SYNCHRONIZE_CACHE:
memset(buff, 0, bufflen);
break;
default:
#if 0
printk(KERN_INFO "scsi_debug: Unsupported command, "
......@@ -394,7 +399,7 @@ int scsi_debug_queuecommand(Scsi_Cmnd * SCpnt, done_funct_t done)
return schedule_resp(SCpnt, devip, done, errsts, scsi_debug_delay);
}
static int scsi_debug_ioctl(Scsi_Device *dev, int cmd, void *arg)
static int scsi_debug_ioctl(struct scsi_device *dev, int cmd, void *arg)
{
if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts) {
printk(KERN_INFO "scsi_debug: ioctl: cmd=0x%x\n", cmd);
......@@ -403,7 +408,7 @@ static int scsi_debug_ioctl(Scsi_Device *dev, int cmd, void *arg)
/* return -ENOTTY; // correct return but upsets fdisk */
}
static int check_reset(Scsi_Cmnd * SCpnt, struct sdebug_dev_info * devip)
static int check_reset(struct scsi_cmnd * SCpnt, struct sdebug_dev_info * devip)
{
if (devip->reset) {
devip->reset = 0;
......@@ -474,8 +479,8 @@ static int resp_inquiry(unsigned char * cmd, int target, unsigned char * buff,
int dev_id_num, len;
char dev_id_str[6];
dev_id_num = ((devip->host->host_no + 1) * 1000) +
devip->target;
dev_id_num = ((devip->host->host_no + 1) * 2000) +
(devip->target * 1000) + devip->lun;
len = snprintf(dev_id_str, 6, "%d", dev_id_num);
len = (len > 6) ? 6 : len;
if (0 == cmd[2]) { /* supported vital product data pages */
......@@ -501,7 +506,7 @@ static int resp_inquiry(unsigned char * cmd, int target, unsigned char * buff,
}
/* drops through here for a standard inquiry */
arr[1] = DEV_REMOVEABLE(target) ? 0x80 : 0; /* Removable disk */
arr[2] = 3; /* claim SCSI 3 */
arr[2] = scsi_debug_scsi_level;
arr[4] = SDEBUG_LONG_INQ_SZ - 5;
arr[7] = 0x3a; /* claim: WBUS16, SYNC, LINKED + CMDQUE */
memcpy(&arr[8], vendor_id, 8);
......@@ -643,6 +648,7 @@ static int resp_mode_sense(unsigned char * cmd, int target,
case 0x3f: /* Read all Mode pages */
len = resp_err_recov_pg(ap, pcontrol, target);
len += resp_disconnect_pg(ap + len, pcontrol, target);
len += resp_format_pg(ap + len, pcontrol, target);
len += resp_caching_pg(ap + len, pcontrol, target);
len += resp_ctrl_m_pg(ap + len, pcontrol, target);
offset += len;
......@@ -662,8 +668,8 @@ static int resp_mode_sense(unsigned char * cmd, int target,
return 0;
}
static int resp_read(Scsi_Cmnd * SCpnt, int upper_blk, int block, int num,
struct sdebug_dev_info * devip)
static int resp_read(struct scsi_cmnd * SCpnt, int upper_blk, int block,
int num, struct sdebug_dev_info * devip)
{
unsigned char *buff = (unsigned char *) SCpnt->request_buffer;
int nbytes, sgcount;
......@@ -711,8 +717,8 @@ static int resp_read(Scsi_Cmnd * SCpnt, int upper_blk, int block, int num,
return 0;
}
static int resp_write(Scsi_Cmnd * SCpnt, int upper_blk, int block, int num,
struct sdebug_dev_info * devip)
static int resp_write(struct scsi_cmnd * SCpnt, int upper_blk, int block,
int num, struct sdebug_dev_info * devip)
{
unsigned char *buff = (unsigned char *) SCpnt->request_buffer;
int nbytes, sgcount;
......@@ -756,8 +762,9 @@ static int resp_write(Scsi_Cmnd * SCpnt, int upper_blk, int block, int num,
static int resp_report_luns(unsigned char * cmd, unsigned char * buff,
int bufflen, struct sdebug_dev_info * devip)
{
unsigned int alloc_len;
unsigned int alloc_len, lun_cnt, i;
int select_report = (int)cmd[2];
ScsiLun *one_lun;
alloc_len = cmd[9] + (cmd[8] << 8) + (cmd[7] << 16) + (cmd[6] << 24);
if ((alloc_len < 16) || (select_report > 2)) {
......@@ -765,8 +772,13 @@ static int resp_report_luns(unsigned char * cmd, unsigned char * buff,
return (COMMAND_COMPLETE << 8) | (CHECK_CONDITION << 1);
}
if (bufflen > 3) {
lun_cnt = min((int)(bufflen / sizeof(ScsiLun)),
(int)scsi_debug_max_luns);
memset(buff, 0, bufflen);
buff[3] = 8;
buff[3] = 8 * lun_cnt;
one_lun = (ScsiLun*) &buff[0];
for (i = 0; i < lun_cnt; i++)
one_lun[i].scsi_lun[1] = i;
}
return 0;
}
......@@ -798,12 +810,13 @@ static void timer_intr_handler(unsigned long indx)
}
static int initialized = 0;
static int num_present = 0;
static int num_hosts_present = 0;
static const char * sdebug_proc_name = "scsi_debug";
static int scsi_debug_detect(Scsi_Host_Template * tpnt)
static int scsi_debug_detect(struct SHT * tpnt)
{
int k, sz;
struct Scsi_Host * hpnt;
if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)
printk(KERN_INFO "scsi_debug: detect\n");
......@@ -813,7 +826,7 @@ static int scsi_debug_detect(Scsi_Host_Template * tpnt)
devInfop = vmalloc(sz);
if (NULL == devInfop) {
printk(KERN_ERR "scsi_debug_detect: out of "
"memory, 0.5\n");
"memory\n");
return 0;
}
memset(devInfop, 0, sz);
......@@ -821,28 +834,31 @@ static int scsi_debug_detect(Scsi_Host_Template * tpnt)
fake_storep = vmalloc(sz);
if (NULL == fake_storep) {
printk(KERN_ERR "scsi_debug_detect: out of memory"
", 0\n");
", 1\n");
return 0;
}
memset(fake_storep, 0, sz);
init_all_queued();
#ifdef DRIVERFS_SUPPORT
sdebug_driverfs_driver.name = (char *)sdebug_proc_name;
sdebug_driverfs_driver.bus = &scsi_driverfs_bus_type;
driver_register(&sdebug_driverfs_driver);
do_create_driverfs_files();
#endif
tpnt->proc_name = (char *)sdebug_proc_name;
for (num_present = 0, k = 0; k < NR_HOSTS_PRESENT; k++) {
if (NULL == scsi_register(tpnt, 0))
for (num_hosts_present = 0, k = 0; k < NR_HOSTS_PRESENT; k++) {
if ((hpnt = scsi_register(tpnt, 0)) == NULL)
printk(KERN_ERR "scsi_debug_detect: "
"scsi_register failed k=%d\n", k);
else
++num_present;
}
#ifdef DRIVERFS_SUPPORT
if (num_present) {
sdebug_driverfs_driver.name = (char *)sdebug_proc_name;
sdebug_driverfs_driver.bus = &scsi_driverfs_bus_type;
driver_register(&sdebug_driverfs_driver);
do_create_driverfs_files();
else {
hpnt->max_lun = scsi_debug_max_luns;
++num_hosts_present;
}
}
#endif
return num_present;
if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)
printk(KERN_INFO "scsi_debug: ... built %d host(s)\n",
num_hosts_present);
return num_hosts_present;
} else {
printk(KERN_WARNING "scsi_debug_detect: called again\n");
return 0;
......@@ -854,11 +870,15 @@ static int num_releases = 0;
static int scsi_debug_release(struct Scsi_Host * hpnt)
{
if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)
printk(KERN_INFO "scsi_debug: release\n");
stop_all_queued();
scsi_unregister(hpnt);
if (++num_releases == num_present) {
int host_no = hpnt->host_no;
if (++num_releases == num_hosts_present) {
if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)
printk(KERN_INFO "scsi_debug: [last] release, "
"host_no=%u\n", host_no);
num_releases = 0;
initialized = 0;
stop_all_queued();
#ifdef DRIVERFS_SUPPORT
do_remove_driverfs_files();
driver_unregister(&sdebug_driverfs_driver);
......@@ -866,14 +886,65 @@ static int scsi_debug_release(struct Scsi_Host * hpnt)
vfree(fake_storep);
vfree(devInfop);
}
else {
if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)
printk(KERN_INFO "scsi_debug: release, host_no=%u\n",
host_no);
}
scsi_unregister(hpnt);
return 0;
}
static struct sdebug_dev_info * devInfoReg(Scsi_Cmnd *scmd)
static int scsi_debug_slave_attach(struct scsi_device * sdp)
{
int k;
struct sdebug_dev_info * devip;
struct sdebug_dev_info * devip;
if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)
printk(KERN_INFO "scsi_debug: slave_attach <%u %u %u %u>\n",
sdp->host->host_no, sdp->channel, sdp->id, sdp->lun);
if (sdp->host->max_cmd_len != SCSI_DEBUG_MAX_CMD_LEN)
sdp->host->max_cmd_len = SCSI_DEBUG_MAX_CMD_LEN;
for (k = 0; k < scsi_debug_num_devs; ++k) {
devip = &devInfop[k];
if ((devip->channel == sdp->channel) &&
(devip->target == sdp->id) &&
(devip->lun == sdp->lun) &&
(devip->host == sdp->host)) {
sdp->hostdata = devip;
break;
}
}
if (sdp->host->cmd_per_lun)
scsi_adjust_queue_depth(sdp, SDEBUG_TAGGED_QUEUING,
sdp->host->cmd_per_lun);
return 0;
}
static void scsi_debug_slave_detach(struct scsi_device * sdp)
{
struct sdebug_dev_info * devip =
(struct sdebug_dev_info *)sdp->hostdata;
if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)
printk(KERN_INFO "scsi_debug: slave_detach <%u %u %u %u>\n",
sdp->host->host_no, sdp->channel, sdp->id, sdp->lun);
if (devip) {
/* make this slot avaliable for re-use */
memset(devip, 0, sizeof(struct sdebug_dev_info));
sdp->hostdata = NULL;
}
}
static struct sdebug_dev_info * devInfoReg(struct scsi_cmnd *scmd)
{
int k;
struct scsi_device * sdp = scmd->device;
struct sdebug_dev_info * devip =
(struct sdebug_dev_info *)sdp->hostdata;
if (devip)
return devip;
for (k = 0; k < scsi_debug_num_devs; ++k) {
devip = &devInfop[k];
if ((devip->channel == scmd->channel) &&
......@@ -915,7 +986,7 @@ static void mk_sense_buffer(struct sdebug_dev_info * devip, int key,
sbuff[13] = asq;
}
static int scsi_debug_abort(Scsi_Cmnd * SCpnt)
static int scsi_debug_abort(struct scsi_cmnd * SCpnt)
{
if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts)
printk(KERN_INFO "scsi_debug: abort\n");
......@@ -938,7 +1009,7 @@ static int scsi_debug_biosparam(struct scsi_device *sdev,
return 0;
}
static int scsi_debug_device_reset(Scsi_Cmnd * SCpnt)
static int scsi_debug_device_reset(struct scsi_cmnd * SCpnt)
{
struct sdebug_dev_info * devip;
......@@ -953,9 +1024,9 @@ static int scsi_debug_device_reset(Scsi_Cmnd * SCpnt)
return SUCCESS;
}
static int scsi_debug_bus_reset(Scsi_Cmnd * SCpnt)
static int scsi_debug_bus_reset(struct scsi_cmnd * SCpnt)
{
Scsi_Device * sdp;
struct scsi_device * sdp;
struct Scsi_Host * hp;
int k;
......@@ -971,7 +1042,7 @@ static int scsi_debug_bus_reset(Scsi_Cmnd * SCpnt)
return SUCCESS;
}
static int scsi_debug_host_reset(Scsi_Cmnd * SCpnt)
static int scsi_debug_host_reset(struct scsi_cmnd * SCpnt)
{
int k;
......@@ -1048,11 +1119,18 @@ static int schedule_resp(struct scsi_cmnd * cmnd,
{
int k, num;
if (SCSI_DEBUG_OPT_NOISE & scsi_debug_opts) {
if ((SCSI_DEBUG_OPT_NOISE & scsi_debug_opts) && cmnd) {
printk(KERN_INFO "scsi_debug: cmd ");
for (k = 0, num = cmnd->cmd_len; k < num; ++k)
printk("%02x ", (int)cmnd->cmnd[k]);
printk("result=0x%x\n", scsi_result);
printk("\n");
if (scsi_result) {
struct scsi_device * sdp = cmnd->device;
printk(KERN_INFO "scsi_debug: ... <%u %u %u %u> "
"non-zero result=0x%x\n", sdp->host->host_no,
sdp->channel, sdp->id, sdp->lun, scsi_result);
}
}
if (cmnd && devip) {
/* simulate autosense by this driver */
......@@ -1113,6 +1191,38 @@ static int __init num_devs_setup(char *str)
}
__setup("scsi_debug_num_devs=", num_devs_setup);
static int __init max_luns_setup(char *str)
{
int tmp;
if (get_option(&str, &tmp) == 1) {
if (tmp > 0)
scsi_debug_max_luns = tmp;
return 1;
} else {
printk(KERN_INFO "scsi_debug_max_luns: usage scsi_debug_max_luns=<n> "
"(<n> is a postive integer (def=2))\n");
return 0;
}
}
__setup("scsi_debug_max_luns=", max_luns_setup);
static int __init scsi_level_setup(char *str)
{
int tmp;
if (get_option(&str, &tmp) == 1) {
if (tmp > 0)
scsi_debug_scsi_level = tmp;
return 1;
} else {
printk(KERN_INFO "scsi_debug_scsi_level: usage "
"scsi_debug_scsi_level=<n> (<n> is 1..4 (def=3))\n");
return 0;
}
}
__setup("scsi_debug_scsi_level=", scsi_level_setup);
static int __init dev_size_mb_setup(char *str)
{
int tmp;
......@@ -1186,6 +1296,10 @@ MODULE_AUTHOR("Eric Youngdale + Douglas Gilbert");
MODULE_DESCRIPTION("SCSI debug adapter driver");
MODULE_PARM(scsi_debug_num_devs, "i");
MODULE_PARM_DESC(scsi_debug_num_devs, "number of SCSI devices to simulate");
MODULE_PARM(scsi_debug_max_luns, "i");
MODULE_PARM_DESC(scsi_debug_max_luns, "number of SCSI LUNs per target to simulate");
MODULE_PARM(scsi_debug_scsi_level, "i");
MODULE_PARM_DESC(scsi_debug_scsi_level, "SCSI level to simulate");
MODULE_PARM(scsi_debug_dev_size_mb, "i");
MODULE_PARM_DESC(scsi_debug_dev_size_mb, "size in MB of ram shared by devs");
MODULE_PARM(scsi_debug_opts, "i");
......@@ -1237,13 +1351,15 @@ static int scsi_debug_proc_info(char *buffer, char **start, off_t offset,
pos = len = sprintf(buffer, "scsi_debug adapter driver, %s\n"
"num_devs=%d, shared (ram) size=%d MB, opts=0x%x, "
"every_nth=%d(curr:%d)\n"
"sector_size=%d bytes, cylinders=%d, heads=%d, sectors=%d, "
"delay=%d\nnumber of aborts=%d, device_reset=%d, bus_resets=%d, "
"delay=%d, max_luns=%d, scsi_level=%d\n"
"sector_size=%d bytes, cylinders=%d, heads=%d, sectors=%d\n"
"number of aborts=%d, device_reset=%d, bus_resets=%d, "
"host_resets=%d\n",
scsi_debug_version_str, scsi_debug_num_devs,
scsi_debug_dev_size_mb, scsi_debug_opts, scsi_debug_every_nth,
scsi_debug_cmnd_count,
SECT_SIZE, N_CYLINDER, N_HEAD, N_SECTOR, scsi_debug_delay,
scsi_debug_cmnd_count, scsi_debug_delay,
scsi_debug_max_luns, scsi_debug_scsi_level,
SECT_SIZE, N_CYLINDER, N_HEAD, N_SECTOR,
num_aborts, num_dev_resets, num_bus_resets, num_host_resets);
if (pos < offset) {
len = 0;
......@@ -1253,8 +1369,7 @@ static int scsi_debug_proc_info(char *buffer, char **start, off_t offset,
len -= (offset - begin);
if (len > length)
len = length;
return (len);
return len;
}
#ifdef DRIVERFS_SUPPORT
......@@ -1280,7 +1395,6 @@ static ssize_t sdebug_delay_write(struct device_driver * ddp,
}
return -EINVAL;
}
DRIVER_ATTR(delay, S_IRUGO | S_IWUSR, sdebug_delay_read,
sdebug_delay_write)
......@@ -1312,7 +1426,6 @@ static ssize_t sdebug_opts_write(struct device_driver * ddp,
scsi_debug_opts = opts;
return count;
}
DRIVER_ATTR(opts, S_IRUGO | S_IWUSR, sdebug_opts_read,
sdebug_opts_write)
......@@ -1321,18 +1434,53 @@ static ssize_t sdebug_num_devs_read(struct device_driver * ddp, char * buf,
{
return off ? 0 : snprintf(buf, count, "%d\n", scsi_debug_num_devs);
}
DRIVER_ATTR(num_devs, S_IRUGO, sdebug_num_devs_read, NULL)
static ssize_t sdebug_dev_size_mb_read(struct device_driver * ddp, char * buf,
size_t count, loff_t off)
{
return off ? 0 : snprintf(buf, count, "%d\n", scsi_debug_dev_size_mb);
}
DRIVER_ATTR(dev_size_mb, S_IRUGO, sdebug_dev_size_mb_read, NULL)
static ssize_t sdebug_every_nth_read(struct device_driver * ddp, char * buf,
size_t count, loff_t off)
{
return off ? 0 : snprintf(buf, count, "%d\n", scsi_debug_every_nth);
}
DRIVER_ATTR(every_nth, S_IRUGO, sdebug_every_nth_read, NULL)
static ssize_t sdebug_max_luns_read(struct device_driver * ddp, char * buf,
size_t count, loff_t off)
{
return off ? 0 : snprintf(buf, count, "%d\n", scsi_debug_max_luns);
}
DRIVER_ATTR(max_luns, S_IRUGO, sdebug_max_luns_read, NULL)
static ssize_t sdebug_scsi_level_read(struct device_driver * ddp, char * buf,
size_t count, loff_t off)
{
return off ? 0 : snprintf(buf, count, "%d\n", scsi_debug_scsi_level);
}
DRIVER_ATTR(scsi_level, S_IRUGO, sdebug_scsi_level_read, NULL)
static void do_create_driverfs_files()
{
driver_create_file(&sdebug_driverfs_driver, &driver_attr_delay);
driver_create_file(&sdebug_driverfs_driver, &driver_attr_opts);
driver_create_file(&sdebug_driverfs_driver, &driver_attr_num_devs);
driver_create_file(&sdebug_driverfs_driver, &driver_attr_dev_size_mb);
driver_create_file(&sdebug_driverfs_driver, &driver_attr_every_nth);
driver_create_file(&sdebug_driverfs_driver, &driver_attr_max_luns);
driver_create_file(&sdebug_driverfs_driver, &driver_attr_scsi_level);
}
static void do_remove_driverfs_files()
{
driver_remove_file(&sdebug_driverfs_driver, &driver_attr_scsi_level);
driver_remove_file(&sdebug_driverfs_driver, &driver_attr_max_luns);
driver_remove_file(&sdebug_driverfs_driver, &driver_attr_every_nth);
driver_remove_file(&sdebug_driverfs_driver, &driver_attr_dev_size_mb);
driver_remove_file(&sdebug_driverfs_driver, &driver_attr_num_devs);
driver_remove_file(&sdebug_driverfs_driver, &driver_attr_opts);
driver_remove_file(&sdebug_driverfs_driver, &driver_attr_delay);
......
drivers/scsi/scsi_debug.h
View file @ 788c551c
......@@ -3,17 +3,20 @@
#include <linux/types.h>
#include <linux/kdev_t.h>
static int scsi_debug_detect(Scsi_Host_Template *);
static int scsi_debug_detect(struct SHT *);
static int scsi_debug_slave_attach(struct scsi_device *);
static void scsi_debug_slave_detach(struct scsi_device *);
static int scsi_debug_release(struct Scsi_Host *);
/* static int scsi_debug_command(Scsi_Cmnd *); */
static int scsi_debug_queuecommand(Scsi_Cmnd *, void (*done) (Scsi_Cmnd *));
static int scsi_debug_ioctl(Scsi_Device *, int, void *);
/* static int scsi_debug_command(struct scsi_cmnd *); */
static int scsi_debug_queuecommand(struct scsi_cmnd *,
void (*done) (struct scsi_cmnd *));
static int scsi_debug_ioctl(struct scsi_device *, int, void *);
static int scsi_debug_biosparam(struct scsi_device *, struct block_device *,
sector_t, int[]);
static int scsi_debug_abort(Scsi_Cmnd *);
static int scsi_debug_bus_reset(Scsi_Cmnd *);
static int scsi_debug_device_reset(Scsi_Cmnd *);
static int scsi_debug_host_reset(Scsi_Cmnd *);
static int scsi_debug_abort(struct scsi_cmnd *);
static int scsi_debug_bus_reset(struct scsi_cmnd *);
static int scsi_debug_device_reset(struct scsi_cmnd *);
static int scsi_debug_host_reset(struct scsi_cmnd *);
static int scsi_debug_proc_info(char *, char **, off_t, int, int, int);
static const char * scsi_debug_info(struct Scsi_Host *);
......@@ -33,6 +36,8 @@ static Scsi_Host_Template driver_template = {
.name = "SCSI DEBUG",
.info = scsi_debug_info,
.detect = scsi_debug_detect,
.slave_attach = scsi_debug_slave_attach,
.slave_detach = scsi_debug_slave_detach,
.release = scsi_debug_release,
.ioctl = scsi_debug_ioctl,
.queuecommand = scsi_debug_queuecommand,
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment
GitLab Nexedi Edition | About GitLab | About Nexedi | 沪ICP备2021021310号-2 | 沪ICP备2021021310号-7